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CTS-4-20 LVDT system consists of either an HCI Series LVDT linear position sensor or an R36AS RVDT rotary position sensor, along with an electronics module which provides a 4-20mA current loop output.  The CTS-420 operates on an unregulated 10 to 36VDC supply voltage. The electronics module provides the position sensor with the required AC voltage excitation voltage and converts the AC voltage output into a smooth 4-20mA signal. The zero and span adjustment potentiometers, as well as the sensor and loop supply connection terminals, are all conveniently located on the front panel for easy installation and calibration.  


  • 4-20mA 2-wire current loop operation 
  • Linear stroke ranges from 0.25 to 10 inches 
  • Rotary version 0 to 90º 
  • Wide operating temperature range 
  • Compact size 
  • Remote sensor operation up to 35 ft [10m]
  • MS style hermetic connector on the sensors 
  • Rugged splash-proof electronics housing (optional)
  • Zero and span adjustable 
  • Hermetically sealed (LVDT only) 
  • Imperial or metric threaded core (LVDT) 
  • Cable assembly up to 35ft. (optional)  


Please review product documents or contact us for the latest agency approval information.  

Electrical Characteristics

  • Supply Voltage (V) 10 – 36

  • Analog Output  4 – 20 mA

  • Electrical Connections  PT02A-10-6P

Body Features

  • Form Factor  Cylindrical

  • Spring Loaded  Separate Core

Housing Features

  • Housing Material  Stainless Steel

  • Housing Diameter  19.05 mm [ .75 in ]

Usage Conditions

  • Operating Temperature  -55 – 150 °C [ -67 – 302 °F ]

  • Environmental Specifications  1,000 PSI Pressure

Industry Standards

  • IP Rating  IP68


  • Full Stroke Ranges (mm) ±101.6, ±12.7, ±25.4, ±254, ±50.8, ±6.35

  • Full Stroke Ranges (in) ±.25, ±.5, ±1, ±10, ±2, ±4

  • Linearity (% of Span) ±.5 – ±1.5

Related Materials

Datasheets & Catalog Pages

Product Specifications

Manuals & User Guides

Terms and Conditions

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